Faint line on pregnancy test! Am I pregnant??

Hey girls ....I am on my second round of clomid and I am also taking prometrium this month, because my doctor said my levels were low. I got a positive lh surge on CD 18 and am now 9-10 DPO. I wanted to take a pregnancy test before I stopped taking the prometrium and when I did, I got a faint line on both of the tests I took. I used the first response tests. Is it too early to detect a pregnancy at only 9-10 DPO? And what does a faint line mean? I don't want to get my hopes up! Ahhh!! I've attached a link to view the results of the test :)
http://i33.photobucket.com/albums/d91/LSunshine20/032.jpg

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